44744391 has 24 divisors (see below), whose sum is σ = 69086160. Its totient is φ = 27806976.

The previous prime is 44744389. The next prime is 44744393. The reversal of 44744391 is 19344744.

It is an interprime number because it is at equal distance from previous prime (44744389) and next prime (44744393).

It is not a de Polignac number, because 44744391 - 2¹ = 44744389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44744393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15336 + ... + 18018.

It is an arithmetic number, because the mean of its divisors is an integer number (2878590).

Almost surely, 2^44744391 is an apocalyptic number.

44744391 is a deficient number, since it is larger than the sum of its proper divisors (24341769).

44744391 is a wasteful number, since it uses less digits than its factorization.

44744391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815 (or 2812 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 44744391 is about 6689.1248306486. The cubic root of 44744391 is about 355.0145890982.

The spelling of 44744391 in words is "forty-four million, seven hundred forty-four thousand, three hundred ninety-one".